Malicious PDF — malware analysis report

Static analysis result for SHA-256 152be17ad22d8375…

MALICIOUS

PDF

86.1 KB Created: 2020-08-13 18:56:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5e86e0396e8986727c26feef25349347 SHA-1: d44e29db7f49ae3b7301f59cfd6c963ac46c8007 SHA-256: 152be17ad22d83755da0e8a6ae78ffb2be175d1db9b0b7b90b41e073270f6cf7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or SEO scam. The embedded URL points to a redirector that likely leads to a malicious site, disguised as a biography document. While no scripts were extracted, the PDF structure and embedded links strongly indicate a malicious intent to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/wb?keyword=biografia%20tadeo%20isidoro%20cruz%20pdf In PDF document text
    • http://files.pineywoodsaudubonsocietytx.org/uploads/1/3/1/4/131409574/6200936.pdfIn PDF document text
    • http://medope.theyouthchallenge.com/uploads/1/3/1/6/131607063/9063176.pdfIn PDF document text
    • http://files.bargainbusnyc.com/uploads/1/3/1/8/131856257/68dbc.pdfIn PDF document text
    • http://bepip.roamingbuffalo.us/uploads/1/3/0/7/130775320/wuveguwazi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7793/5004/files/alelopatia_cultivos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7811/3690/files/56035605776.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4209/4755/files/dg_a_b_c_d_check.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6468/4697/files/tutorial_of_ms_excel_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5761/4741/files/arc_length_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4336/4759/files/3257965555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8713/4882/files/33330011305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4369/2445/files/lipaxizegiwonixekowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9212/3560/files/icao_annex_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3477/9553/files/87094697897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9717/0847/files/wizawubijavanixagolomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7868/0730/files/automatismes_et_automatique_cours_et_exercices_corrigs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9915/1768/files/2_and_4_stroke_engine.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001106b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1106B 5388 bytes
SHA-256: 597253649b395a07fd9f7f807fe8ab876ecebe1f429e9c3e7b67602f93038793
font_01_sfnt_off000122d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122D8 11916 bytes
SHA-256: 0a611cc72874e463338a3a5dd280868e7f4d531724feb3fcd49e372e277b415a

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